Automatic signaling and train-stopping combination circuit device.



C. G. TURNER.

TRAIN STOPPING COMBINATION CIRCUIT DEVICE. APPLICATION FILED MAR.11,1913.

1,080,088, Patented Dec. 2, 1913.

AUTOMATIC SIGNALING AND UNITED STATES Paran a CLARENCE CLAUDE TURNER, OFPORTLAND, OREGON, ASSIGNOB OF ONE-HALF. TO GEORGE YALE, OF PORTLAND,OREGON.

AUTOMATIGSIGN'ALING AND TRAIN-STOPPING COMBINATION CIRCUIT DEVICE.

Specification of Letters Patent.

Patented Dec. 2, 1913.

original application filed Kay 27', 1912, Serial No. 699,946. Dividedand this application filed March 11,

. 1913. Serial No. 753,539.

To all whom it are concern:

Be it known that I, CLARENCE CLAUDE TURNER, a citizen of the UnitedStates, resident of the city of Portland, county of Multnomah, State ofOregon, have invented a certain new and useful Improvement in AutomaticSignaling and Train-Stopping Combination Circuit Devices.

My invention relates to automatic signalingr and stopping devices forrailway vehicles and train of vehicles, equipped either with electricmotors or steam, or other 1000- motives for propelling, and with air orelectric or other automatic brakes for retarding and stopping same, andis a division of m application, Serial No. 699,946, filed Mhy 27, 1912.

The general object of my invention is to a provide a safe and reliableautomatic means of performingindependently of the motorman or locomotiveengineer some of the functions he is usually expected to perform whilein charge of his vehicle or train, but which he may for anyof variousreasons, be unable to, or neglect to perform.

Railroads equipped with trains operated by steam locomotives, or as incase of interur'ban electric lines, by motor cars, usually have theirroads divided into blocks, each block being provided with signals, thepurpose of these signals being to show the line clear, or otherwise inthe block, or section immediately ahead of the signal shown.

Should the signal ahead ofa moving train show danger the engineer ormotorman would ordinarily shut oil his propelling ower and apply thebrakes, but should he or any reason fail to do so, my invention isdevised to operate automatically in combination with anyelectro-lnechanical railway signaling systein, or independentlysothatpart of an electric circuit connecting wlth a third rail is closedin such a manner that when certain electro-mechanical contrivances onthe moving vehicle, as for instance those described in my application#699,946, come in contact with the aforesaid rail, they areautomaticallyputinto operation and shut oil the propelling forces, and apply thebrakes.

The figure shows the plan of a railroad track fitted with the third railautoy application will matic signaling and train stopping combinationcircuit device as arranged to work in.

combination with my invention as described ing a completed electriccircuit to put it into co operation.

To describe my device more in detaihl are short sections of third raillaidin close proximity to-and parallel with the main track rails, havingtheir top surfaces several inches above the level of the surface of themain track rails and insulated from same and from the ground. The topsurface of this third rail is curved slightly downward at the ends sothat the roller 2 readily ride upon said rails.

1 are single sections of main line rails insulated at each end from therest of the track by suitable insulators 1 so that they,

have no conducting connections with the rest of the railway track.

4 are insulated electric wires connecting the third rails 1 to thecontact points 4: of

electric relays 14, 15,16, 17, 18, 19, 20, 21,

22, 23, 2a, 25, 2c, 27, 2s, 29.

5 are insulated electric wires connecting the insulated rails 1 with thearmatures 6 of the relays.

B, C, D, E, F, G, H, are adjoining track signal circuit sections.

7,8, 9, 10, 11, 12, 13, track signal circuit batteries one to eachsection of track respectively. 10 for instance is the track battery forsection E, the iower rail of which in the drawing is wired to onebinding post of relay 19 the upper rail is wired to one binding post ofrelay 24 the other binding posts of said relays are connected by a conduotor thus putting these relays in series with each other and trackbattery 10. These conductors connecting the relays to the track railsare attached to the rails at the o posite end of the section to theconducto s connecting ,To describe the operation of my invention we willassume a train traveling in the direction of A from the right and thatit has entered section E; the conductors from the in my former 70 thebattery to the track.

track to the relays 19 and 24 are connected to track rails in closeproximity to the rail insulators 1" so that when the front wheels andaxle of the engine have entered a short distance into section vE theyshort circuit the battery 10 circuit; the effect of this short circuitis to deenergize the relay magnets 12 i and 19, this releases'thearmatures 6 of said magnets allowing them to spring back and contactwith the contact points 4: bondmg the third rail to the insulated railsection 1 between F and G and also between C and D. This sets the thirdrail combination between F and G and that between C and D namely thosecombinations now controlled by relays 24 and 19 respectively; so thatany vehicle or train fitted with the invention described in myapplication, Serial No. 699,946 or any other similar contrivancerequiring the closing of an income plete electric circuit to put it intooperation; approaching the section E from the right of the drawing willbe automatically stopped as the roller 2 (see Fig. 1 application, SerialNo. 699,946) contacts with the third rail 1 between F and G as also anytrain approaching section E from the left side of the drawing will beautomatically stopped in a similar manner by said roller 2 or othersimilar contr'ivance cont-acting with the third rail 1 between C and D.The train on section E is thus protected from both ahead and behind. Itwill be clear to anyone familiar with the art of railway signal ing thatthe third rail combination above described may be set in a variety ofways, but the above description will be sufficient to show the greatvalue of this contrivance as a preventive of railroad headon collisionsor rear-end collisions or as a means to readily cont-r01 the movement oftrains at a great distance from the signal operator. It is clear that itcan be adapted to work in combination with a regular block signalingsystem or with its own independent batteries or circuits.

What I claim as new and desire to secure by Letters Patent is 1. In anautomatic signaling and train stopping combination circuit device of thecharacter described, the combination with track batteries, track relaysarranged in pairs and their circuits of a track having a short insulatedsection for each pair of relays, an insulated conductor which 'forms aconducting connection between the section of insulated track rail andthe armatures of the corresponding track relays, a section. of insulatedthird rail which is laid in close proximity to and parallel with theinsulated section of the main track rail a second insulated conductorand contacting points connected by the aforesaid second insulatedconductor to the aforesaid section of insulated'third rail, and arrangedto contact with the aforesaid relay armatures when they are released by.theirrespective magnets.

2. A single track system of train control comprising a track having onerail divided by insulated joints into block sections and the other raildivided by .two insulated joints at the end of each block intocorresponding block sections with relatively short sections separatingthe block sections, a coritact rail paralleling each short section,connections between each short section and the corresponding contactrail, two magnets for each contact rail controlling said connec tronsone'of the magnets of any contact rarl' being connected with the trackrails of the second block in one direct-ion from the contact rail andthe other magnet belng con nected with the track rails of the secondblock in the oppositedirection, and a battery connected with the railsof each block section.

CLAitENCE CLAUDE TURNER.

\Vi tnesses I. H. "MORTON,

LUoY LI. MnAnE.

Washington, D. G.

